Grateful Dead Productions wants to pull MP3s

rsidd writes "According to latest information Grateful Dead Productions have asked www.deadabase.com to pull MP3 files of concerts from their archives, or to face legal action. I wonder, does this have the sanction of the band, and if the band who pioneered free distribution of their music does this, what else is in store? " From the tone of the information, this sounds like something that isn't at the sanction of the artists, BTW.